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Old 10-02-2008, 07:22 AM   #1
Jo Suburban
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Chevy Suburban 1978

So I have a question!

Can anyone tell me what this is (see pictures) and if it is possible to remove it from the engine/exhaust?

Greetz Jo









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Old 10-02-2008, 09:17 AM   #2
eaglelox
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Re: Chevy Suburban 1978

second pick is a temp controlled vacuum lines i think. dont have that stuf in my burb. not sure about the first pick, maybe a vent or some kind of smog crap.
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Old 10-02-2008, 11:28 AM   #3
Bad Karma
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Re: Chevy Suburban 1978

Last pic is the thermo-controlled vacuum valve. It's supposed to block vacuum to the distributor when the engine is cold.

First two pics, I have never seen that thing before... Where does the other end go to? Fuel tank or transmission, maybe?
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Old 10-02-2008, 11:39 AM   #4
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Re: Chevy Suburban 1978

I took both off my 80. No problems.

First pic is an EFE valve. Emissions item designed to route exhaust gases to the base of the carb.

- Dave
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Old 10-02-2008, 12:09 PM   #5
tvblazer78
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Re: Chevy Suburban 1978

Quote:
Originally Posted by wedgemon View Post
I took both off my 80. No problems.

First pic is an EFE valve. Emissions item designed to route exhaust gases to the base of the carb.

- Dave
And to heat your motor up faster when it's cold...
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